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Details for Patent: 6,159,458

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Which drugs does patent 6,159,458 protect, and when does it expire?

Patent 6,159,458 protects AZASITE and is included in one NDA. There has been one Paragraph IV challenge on Azasite. There are three tentative approvals for the compound protected by this patent. Additional details are available via the generic ingredient links below.

This patent has eleven patent family members in twelve countries.

Summary for Patent: 6,159,458

Title: Sustained release ophthalmic compositions containing water soluble medicaments
Abstract:An ophthalmic composition that provides sustained release of a water soluble medicament is formed comprising a crosslinked carboxy-containing polymer, a medicament, a sugar and water. The composition has a pH of at least 6.7 but a viscosity of from about 1000 to 5000 cps.
Inventor(s): Bowman; Lyle M. (Pleasanton, CA), Pfeiffer; James F. (Oakland, CA)
Assignee: InSite Vision (Alameda, CA)
Application Number:08/963,815
Patent Claim Types:
see list of patent claims
Composition; Use;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Oak Pharms Inc
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International Patent Family for Patent: 6,159,458

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria213405► Subscribe
Australia1303699► Subscribe
Australia745339► Subscribe
Canada2302379► Subscribe
Germany69803940► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.